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TEA1532P 데이터 시트보기 (PDF) - Philips Electronics
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TEA1532P
GreenChip™II SMPS control IC
Philips Electronics
TEA1532P Datasheet PDF : 27 Pages
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Philips Semiconductors
5. Block diagram
TEA1532
GreenChip
™
II SMPS control IC
V
CC
1
2
S1
GND
SUPPLY
MANAGEMENT
internal UVLO start
supply
V
m
OSCILLATOR
SLOPE
COMPENSATION
I
slopecomp
4
CTRL
−
1
5.6 V
POWER-ON
RESET
DCM
AND
CCM
DETECTION
START-UP
CURRENT SOURCE
VALLEY
LOGIC
Osc_Rdy
Duty_Max LOGIC
80
mV
DRIVER
SQ
UVLO R Q
LEB
blank
OCP
I
prot(dem)
clamp
8
DRAIN
5
DEM
soft
start
S2
−
50
mV
7
DRIVER
I
ss
0.5 V
control
detect
0.63 V
PROTECT
I
charge
3
300
Ω
5.6 V
I
discharge
Fig 1. Block diagram.
MAXIMUM
ON-TIME
PROTECTION
2.5 V
S3
DCM and CCM
BROWN-OUT
PROTECTION
6
SENSE
protect
3 V
detect
OVER-
TEMPERATURE
PROTECTION
SQ
VCC < 4.5 V
RQ
TEA1532T
TEA1532P
coa014
9397 750 13113
Preliminary data sheet
Rev. 01 — 28 May 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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